Q. What should be my first steps in caring for our books and other materials damaged by storms and flood waters?

A. As noted in Tips for Salvaging Water Damaged Valuables by the American Institute for Conservation of Historic and Artistic Works (AIC) and the Heritage Preservation, water-damaged books "may be extremely fragile" so handle with care. To prevent mold growth, they "should be air dried or kept in a refrigerator or freezer until they can be treated by a professional conservator." Also advised:

If the object is still wet, rinse with clear water or a fine hose spray. Clean off dry silt and debris from your belongings with soft brushes or dab with damp cloths. Try not to grind debris into objects; overly energetic cleaning will cause scratching. Dry with a clean, soft cloth. Use plastic or rubber gloves for your own protection.

Air dry objects indoors if possible. Sunlight and heat may dry certain materials too quickly, causing splits, warping, and buckling. If possible, remove contents from wet objects and furniture prior to drying. Storing damp items in sealed plastic bags will cause mold to develop. If objects are to be transported in plastic bags, keep bags open and air circulating.

The best way to inhibit the growth of mold and mildew is to reduce humidity. Increase air flow with fans, open windows, air conditioners, and dehumidifiers. Moderate light exposure (open shades, leave basement lights on) can also reduce mold and mildew.